If they were record albums, we’d call them the “B” side. Once upon a time, they were just as important as the front.
To some, they still are.
Larry Granillo of Baseball Prospectus dug through cards from the early 1950s to the present day to glean how card companies presented player data on the backs of their annual issues.
How much has changed and how much innovation has there been?
Can we still learn math by reading them? Check out the analysis of a card collector-turned-stat man.
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